Posted by sandi on Thursday, April 10, 2014 at 11:35pm.
Suppose that 16 inches of wire costs 64 cents.
At the same rate, how many inches of wire can be bought for 48 cents?

math  Steve, Thursday, April 10, 2014 at 11:51pm
48 is 3/4 of 64 cents
so, what's 3/4 of 16 inches?

math  Muhammad, Friday, April 11, 2014 at 12:51am
16:64=48:x
16/64=48/x
1/4=48/x
by cross multiplication
x=192
so you can buy 192inches of wire.
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